The Octane 25 Hydration Pack is designed for trail running, fast hiking, and endurance adventures. It includes a 2L Crux™ reservoir with Quicklink™ system for easy hydration, a stretch overflow pocket for extra layers, breathable 3D mesh, and a ventilated hipbelt for airflow and comfort. Dual sternum straps ensure a secure fit and minimize bounce. The pack features 13 pockets for organizing fuel, phone, poles, and layers, as well as secure trekking pole carry, Quick Stow™ flask compatibility, an integrated rain cover, and reflective elements for visibility.